POSIX.1q
E697427
POSIX.1q is the IEEE standard that defines Virtual LAN (VLAN) tagging for Ethernet networks, commonly known as IEEE 802.1Q.
All labels observed (1)
| Label | Occurrences |
|---|---|
| POSIX.1q canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T7894390 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: POSIX.1q Context triple: [POSIX, includes, POSIX.1q]
-
A.
IEEE 802.1Qci
IEEE 802.1Qci is an Ethernet networking standard that defines per-stream filtering and policing mechanisms to enhance traffic control and improve reliability and security in time-sensitive networks.
-
B.
IEEE 802.1Qcr
IEEE 802.1Qcr is an Ethernet networking standard that specifies asynchronous traffic shaping to improve latency and jitter control for time-sensitive and deterministic networking applications.
-
C.
IEEE 802.1Qcj
IEEE 802.1Qcj is an amendment to the IEEE 802.1Q standard that enhances Time-Sensitive Networking by improving mechanisms for reliable and deterministic Ethernet communication.
-
D.
IEEE 802.1Qex
IEEE 802.1Qex is an amendment to the IEEE 802.1Q standard that enhances Ethernet bridging by adding advanced features for traffic engineering and improved control of data paths in bridged networks.
-
E.
IEEE 802.1Qca
IEEE 802.1Qca is an amendment to the IEEE 802.1Q standard that specifies path control and reservation mechanisms for deterministic and traffic-engineered Ethernet networks.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: POSIX.1q Target entity description: POSIX.1q is the IEEE standard that defines Virtual LAN (VLAN) tagging for Ethernet networks, commonly known as IEEE 802.1Q.
-
A.
IEEE 802.1Qci
IEEE 802.1Qci is an Ethernet networking standard that defines per-stream filtering and policing mechanisms to enhance traffic control and improve reliability and security in time-sensitive networks.
-
B.
IEEE 802.1Qcr
IEEE 802.1Qcr is an Ethernet networking standard that specifies asynchronous traffic shaping to improve latency and jitter control for time-sensitive and deterministic networking applications.
-
C.
IEEE 802.1Qcj
IEEE 802.1Qcj is an amendment to the IEEE 802.1Q standard that enhances Time-Sensitive Networking by improving mechanisms for reliable and deterministic Ethernet communication.
-
D.
IEEE 802.1Qex
IEEE 802.1Qex is an amendment to the IEEE 802.1Q standard that enhances Ethernet bridging by adding advanced features for traffic engineering and improved control of data paths in bridged networks.
-
E.
IEEE 802.1Qca
IEEE 802.1Qca is an amendment to the IEEE 802.1Q standard that specifies path control and reservation mechanisms for deterministic and traffic-engineered Ethernet networks.
- F. None of above. chosen
Statements (40)
| Predicate | Object |
|---|---|
| instanceOf | networking standard ⓘ |
| adds | 4-byte VLAN tag to Ethernet frames ⓘ |
| alsoKnownAs |
IEEE 802.1Q
ⓘ
linked to:
IEEE 802.1Q series
|
| appliesTo |
Ethernet networks
ⓘ
linked to:
Ethernet
|
| category |
computer networking
ⓘ
data link layer protocols ⓘ |
| compatibleWith | Ethernet ⓘ |
| defines |
VLAN tagging
ⓘ
Virtual LAN tagging for Ethernet networks ⓘ native VLAN behavior on trunks ⓘ tagged and untagged frames ⓘ |
| enables |
inter-switch VLAN communication
ⓘ
tagged VLANs ⓘ |
| extends | original Ethernet frame format ⓘ |
| goal |
provide VLAN interoperability
ⓘ
support traffic separation without additional physical links ⓘ |
| maintainedBy | IEEE 802.1 Working Group ⓘ |
| operatesAt | OSI Layer 2 ⓘ |
| partOf |
IEEE 802 family of networking standards
ⓘ
linked to:
IEEE 802 family of standards
|
| relatedTo |
IEEE 802.1D
ⓘ
linked to:
IEEE 802.1D MAC bridging standard
IEEE 802.1p ⓘ |
| specifies |
VLAN identifier field
ⓘ
VLAN tag format ⓘ frame tagging method for VLANs ⓘ priority code point field ⓘ tag control information field ⓘ tag protocol identifier field ⓘ |
| standardizes | VLAN implementation across vendors ⓘ |
| supports |
logical separation of broadcast domains
ⓘ
multiple VLANs on a single physical link ⓘ up to 4094 VLAN IDs ⓘ |
| usedFor |
VLAN trunking
ⓘ
quality of service marking ⓘ traffic segregation ⓘ |
| usedIn |
data center networks
ⓘ
enterprise networks ⓘ service provider networks ⓘ |
| uses |
0x8100 as tag protocol identifier
ⓘ
12-bit VLAN identifier ⓘ 3-bit priority code point ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: POSIX.1q Description of subject: POSIX.1q is the IEEE standard that defines Virtual LAN (VLAN) tagging for Ethernet networks, commonly known as IEEE 802.1Q.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.